.right-sidebar{
	position: fixed;
	right:0;
	top:64px;
	width: 50px;
	height: calc(100% - 64px);
	background:#666;
	padding:15px 0;
}
.item{
	width: 50px;
	height: 50px;
	line-height: 50px;
	white-space: nowrap;
	background:#666;
	border-radius: 50px;
	transition:all 300ms;
	color:#fff;
	a{color:#fff;}
	.icon{
		width: 50px;
		height: 50px;
		display: inline-block;
		text-align: center;
		font-size: 25px;
		
	}
	.item-content{
		display: none;
		position: relative;
    top: -4px;

	}
	&.open{
		width: 150px;
		background:#555;
		margin-left: -100px;
		.item-content{
			display: inline-block;
		}
	}
}